A Harem for the (Not So) Proper Succubus

I agreed to a deal with dragons for the sake of my little brother. I have to become their wife—one for four. And they will provide valuable ingredients for his treatment. But there’s one catch: I never became a full succubus, because I ended up in someone else’s body. And naturally, I won’t be able to tolerate the temper of four dragon princes. But transmigrants don’t give up. I will definitely escape. Only who would have known that my brother would be kidnapped...

The first part of the dilogy